I've lost my Firefox Sync account information - What to do

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Firefox Sync works by storing your data on Mozilla servers and synchronizing it with your computers and devices. When you set up Sync, you enter a usernamean email address and password in order to prevent others from accessing your account. In addition, we encrypt your data with a Recovery Key in order to keep it safe on the server. This article explains what to do if you forget or lose any of this important information and are unable to access your Sync account.

Where's my Recovery Key?

Get my Recovery Key from a synchronized device

At the top of the Firefox window, click on the Firefox button and then select Options.At the top of the Firefox window, click on the Tools menu and then select Options.On the menu bar, click on the Firefox menu and select Preferences....At the top of the Firefox window, click on the Edit menu and select Preferences.

Generate a new Recovery Key

If you don't have a copy of your Recovery Key saved, and you don't have a synchronized device nearby, follow these steps to generate a new Recovery Key.

Warning: This will erase all of your data stored on the server. New data will be secured by this key and then uploaded. Your other devices will stop synchronizing, unless you update them with the new Recovery Key.

At the top of the Firefox window, click on the Firefox button and then select Options.At the top of the Firefox window, click on the Tools menu and then select Options.On the menu bar, click on the Firefox menu and select Preferences....At the top of the Firefox window, click on the Edit menu and select Preferences.

Click the menu button
and choose Options.Preferences.

Click on the Sync panel.

Click Set up Firefox Sync and a new window will open.

Under I have a Firefox Sync account, click Connect.

Click I don't have the device with me.

Enter your account email address and password.

Click I have lost my other device and a new Recovery Key will be made for you.

Tip: It's a good idea to print or save your Recovery Key so that you can access your information even when you are away from this computer.

Then click Change Recovery Key. You will see the Setup Complete screen.

Click FinishClose to close the setup window.

I’ve forgotten my Sync password — how do I reset it?

To get a new password follow these steps.

Warning: Your other devices will stop synchronizing unless you update them with the new password.

At the top of the Firefox window, click on the Firefox button and then select Options.At the top of the Firefox window, click on the Tools menu and then select Options.On the menu bar, click on the Firefox menu and select Preferences....At the top of the Firefox window, click on the Edit menu and select Preferences.

Click the menu button
and choose Options.Preferences.

Click on the Sync panel.

Click on Manage Account, and in the drop-down menu, click Change Password.

Now you're ready to go. Remember to update your password on all your synchronized devices by clicking Sync Now and Preferences... in the bottom error bar that will be displayed.

I’ve forgotten or no longer have access to my Sync email address

Unfortunately there's no way to change or recover the email address associated with a Sync account. You would need to create a new account following the steps described in How do I set up Firefox Sync?

At the top of the Firefox window, click on the Firefox button and then select ExitAt the top of the Firefox window, click on the File menu and then select ExitOn the menu bar, click on the Firefox menu and select Quit FirefoxAt the top of the Firefox window, click on the File menu and select Quit

I’ve forgotten my Sync password — how do I reset it?

To get a new password follow these steps.

Warning: Your other devices will stop synchronizing unless you update them with the new password.

At the top of the Firefox window, click on the Firefox button and then select Options.At the top of the Firefox window, click on the Tools menu and then select Options.On the menu bar, click on the Firefox menu and select Preferences....At the top of the Firefox window, click on the Edit menu and select Preferences.

Click the menu button
and choose Options.Preferences.

On the Sync tab, click Sign in to open the Sign in page.

On the Sign in page, click Forgot password? Firefox will send you a reset email.

Follow the instructions in your reset email to change your password.

Now you're ready to go. Remember to update your password on each of your synchronized devices by following the steps below:

At the top of the Firefox window, click on the Firefox button and then select Options.At the top of the Firefox window, click on the Tools menu and then select Options.On the menu bar, click on the Firefox menu and select Preferences....At the top of the Firefox window, click on the Edit menu and select Preferences.

Click the menu button
and choose Options.Preferences.

On the Sync panel, click on Sign in to open the Firefox Sync page.

Enter your new password and click Sign in.

I’ve forgotten or no longer have access to my Sync email address

Unfortunately there's no way to change or recover the email address associated with a Sync account. You would need to create a new account following the steps described in How do I set up Firefox Sync?